BRPI0418954A - codificação e decodificação de sinais baseadas em contexto - Google Patents
codificação e decodificação de sinais baseadas em contextoInfo
- Publication number
- BRPI0418954A BRPI0418954A BRPI0418954-0A BRPI0418954A BRPI0418954A BR PI0418954 A BRPI0418954 A BR PI0418954A BR PI0418954 A BRPI0418954 A BR PI0418954A BR PI0418954 A BRPI0418954 A BR PI0418954A
- Authority
- BR
- Brazil
- Prior art keywords
- context
- module
- coding
- operable
- bit
- Prior art date
Links
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
- H04N19/34—Scalability techniques involving progressive bit-plane based encoding of the enhancement layer, e.g. fine granular scalability [FGS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
- H04N19/64—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission
- H04N19/647—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission using significance based coding, e.g. Embedded Zerotrees of Wavelets [EZW] or Set Partitioning in Hierarchical Trees [SPIHT]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
CODIFICAçãO E DECODIFICAçãO DE SINAIS BASEADAS EM CONTEXTO. A invenção refere-se a um sistema para a codificação baseada em contexto de um sinal de entrada que inclui um módulo de transformada de domínio e um módulo de codificação baseado em contexto. O módulo de transformada de domínio é operável para converter o sinal de entrada em uma seqüência de coeficientes de transformada c¢i!. O módulo de codificação baseado em contexto inclui um módulo de varredura de plano de bits, um módulo de modelagem de contexto e um módulo de codificação e estatística. O módulo de varredura de plano de bits é operável para produzir um símbolo de plano de bits bps¢bp! para cada coeficiente de transformada c¢i! e cada plano de bits¢bp!. O módulo de modelagem de contexto é operável para atribuir um ou mais valores de contexto a cada um dos símbolos de plano de bits bps¢i, bp! recebidos. O módulo de codificação estatística é operável para codificar cada um dos símbolos de plano de bits bps¢i, bp! como uma função de um ou mais dos valores de contexto correspondentes para produzir um fluxo de símbolos codificados baseados em contexto.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SG2004/000211 WO2006006936A1 (en) | 2004-07-14 | 2004-07-14 | Context-based encoding and decoding of signals |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0418954A true BRPI0418954A (pt) | 2007-12-04 |
Family
ID=35784185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0418954-0A BRPI0418954A (pt) | 2004-07-14 | 2004-07-14 | codificação e decodificação de sinais baseadas em contexto |
Country Status (11)
Country | Link |
---|---|
US (1) | US7656319B2 (pt) |
EP (2) | EP2006839A3 (pt) |
JP (1) | JP4842265B2 (pt) |
KR (1) | KR101050261B1 (pt) |
CN (1) | CN100584023C (pt) |
AU (1) | AU2004321469B2 (pt) |
BR (1) | BRPI0418954A (pt) |
MX (1) | MX2007000459A (pt) |
MY (1) | MY143951A (pt) |
TW (1) | TWI361574B (pt) |
WO (1) | WO2006006936A1 (pt) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006065078A1 (en) * | 2004-12-14 | 2006-06-22 | Samsung Electronics Co., Ltd. | Apparatus for encoding and decoding image and method thereof |
DE102005032080A1 (de) * | 2005-07-08 | 2007-01-11 | Siemens Ag | Verfahren zum Senden eines Mediadatenstroms und Verfahren zum Empfangen und Erstellen eines rekonstruierten Mediadatenstroms, sowie dazugehörige Sendevorrichtung und Empfangsvorrichtung |
KR20070037945A (ko) * | 2005-10-04 | 2007-04-09 | 삼성전자주식회사 | 오디오 신호의 부호화/복호화 방법 및 장치 |
KR101237413B1 (ko) * | 2005-12-07 | 2013-02-26 | 삼성전자주식회사 | 오디오 신호의 부호화 및 복호화 방법, 오디오 신호의부호화 및 복호화 장치 |
KR100750165B1 (ko) * | 2006-02-22 | 2007-08-17 | 삼성전자주식회사 | 압축률 향상을 위해 개선된 컨텍스트 모델 선택을 사용하는cabac 부호화 방법 및 장치, 그리고 cabac복호화 방법 및 장치 |
KR101411901B1 (ko) * | 2007-06-12 | 2014-06-26 | 삼성전자주식회사 | 오디오 신호의 부호화/복호화 방법 및 장치 |
PL3300076T3 (pl) | 2008-07-11 | 2019-11-29 | Fraunhofer Ges Forschung | Koder audio i dekoder audio |
KR101622950B1 (ko) * | 2009-01-28 | 2016-05-23 | 삼성전자주식회사 | 오디오 신호의 부호화 및 복호화 방법 및 그 장치 |
KR20100136890A (ko) * | 2009-06-19 | 2010-12-29 | 삼성전자주식회사 | 컨텍스트 기반의 산술 부호화 장치 및 방법과 산술 복호화 장치 및 방법 |
CN102667923B (zh) | 2009-10-20 | 2014-11-05 | 弗兰霍菲尔运输应用研究公司 | 音频编码器、音频解码器、用于将音频信息编码的方法、用于将音频信息解码的方法 |
SG182466A1 (en) | 2010-01-12 | 2012-08-30 | Fraunhofer Ges Forschung | Audio encoder, audio decoder, method for encoding and audio information, method for decoding an audio information and computer program using a modification of a number representation of a numeric previous context value |
CA2794771C (en) * | 2010-05-21 | 2016-03-29 | Research In Motion Limited | Methods and devices for reducing sources in binary entropy coding and decoding |
KR101676477B1 (ko) * | 2010-07-21 | 2016-11-15 | 삼성전자주식회사 | 컨텍스트 기반의 무손실 부호화 장치 및 방법, 그리고 복호화 장치 및 방법 |
USRE47366E1 (en) | 2011-06-23 | 2019-04-23 | Sun Patent Trust | Image decoding method and apparatus based on a signal type of the control parameter of the current block |
JP5318292B2 (ja) | 2011-06-23 | 2013-10-16 | パナソニック株式会社 | 画像復号方法及び画像復号装置 |
CN106878722B (zh) | 2011-06-24 | 2019-11-12 | 太阳专利托管公司 | 解码方法、解码装置、编码方法、编码装置 |
WO2012176464A1 (ja) | 2011-06-24 | 2012-12-27 | パナソニック株式会社 | 画像復号方法、画像符号化方法、画像復号装置、画像符号化装置及び画像符号化復号装置 |
MX2013013483A (es) | 2011-06-27 | 2014-02-27 | Panasonic Corp | Metodo de decodificacion de imagenes, metodo de codificacion de imagenes, aparato de decodificacion de imagenes, aparato de codificacion de imagenes y aparato de codificacion y decodificacion de imagenes. |
CN107105254B (zh) | 2011-06-28 | 2020-03-20 | 太阳专利托管公司 | 编码方法及编码装置 |
WO2013001767A1 (ja) | 2011-06-29 | 2013-01-03 | パナソニック株式会社 | 画像復号方法、画像符号化方法、画像復号装置、画像符号化装置及び画像符号化復号装置 |
KR102060619B1 (ko) | 2011-06-30 | 2019-12-30 | 선 페이턴트 트러스트 | 화상 복호 방법, 화상 부호화 방법, 화상 복호 장치, 화상 부호화 장치 및 화상 부호화 복호 장치 |
PL2728869T3 (pl) | 2011-06-30 | 2022-02-28 | Sun Patent Trust | Sposób dekodowania obrazów |
CN106851295B (zh) | 2011-07-11 | 2019-10-18 | 太阳专利托管公司 | 编码方法及编码装置 |
US8682091B2 (en) | 2011-08-18 | 2014-03-25 | International Business Machines Corporation | Real-time image compression |
KR102073868B1 (ko) * | 2011-11-07 | 2020-02-05 | 타지반 투 엘엘씨 | 화상 부호화 방법, 화상 복호 방법, 화상 부호화 장치, 화상 복호 장치, 및 화상 부호화 복호 장치 |
CN105141966B (zh) * | 2015-08-31 | 2018-04-24 | 哈尔滨工业大学 | 视频压缩中变换系数的上下文建模方法 |
US11113846B2 (en) * | 2018-08-31 | 2021-09-07 | Hulu, LLC | Coefficient context modeling in video coding |
CN112447165A (zh) * | 2019-08-15 | 2021-03-05 | 阿里巴巴集团控股有限公司 | 信息处理、模型训练和模型构建方法、电子设备、智能音箱 |
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US5603012A (en) * | 1992-06-30 | 1997-02-11 | Discovision Associates | Start code detector |
US6195465B1 (en) * | 1994-09-21 | 2001-02-27 | Ricoh Company, Ltd. | Method and apparatus for compression using reversible wavelet transforms and an embedded codestream |
US6141446A (en) * | 1994-09-21 | 2000-10-31 | Ricoh Company, Ltd. | Compression and decompression system with reversible wavelets and lossy reconstruction |
JP3847349B2 (ja) * | 1997-02-03 | 2006-11-22 | シャープ株式会社 | デジタル画像の埋め込み符号器、レート―歪み最適化方法、復号器及び復号方法 |
US6263109B1 (en) * | 1998-09-25 | 2001-07-17 | Hewlett-Packard Company | Context-based ordering and coding of transform coefficient bit-planes for embedded bitstreams |
US6466698B1 (en) * | 1999-03-25 | 2002-10-15 | The United States Of America As Represented By The Secretary Of The Navy | Efficient embedded image and video compression system using lifted wavelets |
US6625215B1 (en) * | 1999-06-07 | 2003-09-23 | Lucent Technologies Inc. | Methods and apparatus for context-based inter/intra coding mode selection |
US6680974B1 (en) * | 1999-12-02 | 2004-01-20 | Lucent Technologies Inc. | Methods and apparatus for context selection of block transform coefficients |
AUPQ618500A0 (en) * | 2000-03-13 | 2000-04-06 | Canon Kabushiki Kaisha | Memory management of compressed images data |
AUPQ982400A0 (en) * | 2000-09-01 | 2000-09-28 | Canon Kabushiki Kaisha | Entropy encoding and decoding |
JP2002149153A (ja) * | 2000-11-10 | 2002-05-24 | Canon Inc | 画像処理装置、画像処理システム、画像処理方法、及び記憶媒体 |
AUPR192800A0 (en) * | 2000-12-06 | 2001-01-04 | Canon Kabushiki Kaisha | Digital image compression and decompression |
JP2002223446A (ja) * | 2001-01-26 | 2002-08-09 | Ricoh Co Ltd | 画像圧縮装置および画像撮像装置 |
US6898323B2 (en) * | 2001-02-15 | 2005-05-24 | Ricoh Company, Ltd. | Memory usage scheme for performing wavelet processing |
US7062101B2 (en) * | 2001-03-30 | 2006-06-13 | Ricoh Co., Ltd. | Method and apparatus for storing bitplanes of coefficients in a reduced size memory |
US6856701B2 (en) * | 2001-09-14 | 2005-02-15 | Nokia Corporation | Method and system for context-based adaptive binary arithmetic coding |
JP2003235042A (ja) * | 2002-02-12 | 2003-08-22 | Sony Corp | 画像符号化装置及びその符号化方法 |
US6646578B1 (en) * | 2002-11-22 | 2003-11-11 | Ub Video Inc. | Context adaptive variable length decoding system and method |
JP4003628B2 (ja) * | 2002-12-02 | 2007-11-07 | ソニー株式会社 | 画像符号化装置及び方法、並びにプログラム |
JP2004032772A (ja) * | 2003-06-23 | 2004-01-29 | Ricoh Co Ltd | 画像処理装置 |
KR20050087956A (ko) * | 2004-02-27 | 2005-09-01 | 삼성전자주식회사 | 무손실 오디오 부호화/복호화 방법 및 장치 |
WO2006065078A1 (en) * | 2004-12-14 | 2006-06-22 | Samsung Electronics Co., Ltd. | Apparatus for encoding and decoding image and method thereof |
-
2004
- 2004-07-14 CN CN200480043606A patent/CN100584023C/zh not_active Expired - Fee Related
- 2004-07-14 EP EP08166484A patent/EP2006839A3/en not_active Withdrawn
- 2004-07-14 JP JP2007521436A patent/JP4842265B2/ja not_active Expired - Fee Related
- 2004-07-14 AU AU2004321469A patent/AU2004321469B2/en not_active Ceased
- 2004-07-14 KR KR1020077003321A patent/KR101050261B1/ko not_active IP Right Cessation
- 2004-07-14 US US11/632,486 patent/US7656319B2/en not_active Expired - Fee Related
- 2004-07-14 WO PCT/SG2004/000211 patent/WO2006006936A1/en active Application Filing
- 2004-07-14 MX MX2007000459A patent/MX2007000459A/es active IP Right Grant
- 2004-07-14 BR BRPI0418954-0A patent/BRPI0418954A/pt not_active IP Right Cessation
- 2004-07-14 EP EP04749233A patent/EP1774791A4/en not_active Withdrawn
-
2005
- 2005-07-13 TW TW094123721A patent/TWI361574B/zh not_active IP Right Cessation
- 2005-07-13 MY MYPI20053198A patent/MY143951A/en unknown
Also Published As
Publication number | Publication date |
---|---|
KR101050261B1 (ko) | 2011-07-19 |
CN100584023C (zh) | 2010-01-20 |
JP2008506987A (ja) | 2008-03-06 |
MY143951A (en) | 2011-07-29 |
CN101015216A (zh) | 2007-08-08 |
US20080094259A1 (en) | 2008-04-24 |
KR20070040392A (ko) | 2007-04-16 |
WO2006006936A1 (en) | 2006-01-19 |
EP1774791A1 (en) | 2007-04-18 |
EP1774791A4 (en) | 2007-11-28 |
EP2006839A3 (en) | 2009-02-11 |
JP4842265B2 (ja) | 2011-12-21 |
MX2007000459A (es) | 2007-07-25 |
AU2004321469A1 (en) | 2006-01-19 |
AU2004321469B2 (en) | 2009-08-20 |
EP2006839A2 (en) | 2008-12-24 |
TW200620847A (en) | 2006-06-16 |
TWI361574B (en) | 2012-04-01 |
US7656319B2 (en) | 2010-02-02 |
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